9-5 Wagon (9600) L4-2.3L Turbo (B235) (1999)
Refrigerant Oil: Service and Repair
Filling and adjustment of compressor oil
The A/C system is filled with 145 ml compressor oil. A certain amount of compressor oil is always lost while draining the refrigerant and when replacing
components. This amount must be refilled, otherwise the function of the system will deteriorate. Compressor oil is refilled on the high-pressure side of
the compressor.
Important
Use compressor oil specified in Application and ID, "Compressor Oil."
The table below shows how much compressor oil is lost in connection with various types of work on the A/C system:
Reason for loss of oil
Amount of oil lost
Draining of refrigerant
15 ml
Burst A/C hose
30 ml
Replacement of hose
15 ml
Replacement of condenser
30 ml
Replacement of evaporator
30 ml
Replacement of receiver
30 ml
Replacement of expansion valve
15 ml
Replacement of compressor*
50 ml*
* Note that the new compressor is supplied containing 145 ml oil. In order to avoid filling the A/C system with too much oil, resulting in inferior
cooling, oil must first be drained from the compressor before fitting. How much depends on the amounts of oil lost when replacing other components.
The A/C system must always contain 145 ml compressor oil.
If the compressor only is replaced, 110 ml oil must be drained from the new compressor (145-50-15-80). If the receiver is also replaced, only 50 ml oil
should be drained form the compressor, as shown in the following calculation:
145 ml (new compressor)
^
15 ml (lost during draining)
^
30 ml (lost when replacing receiver)
^
50 ml (lost when fitting a new compressor)
50 ml (to be drained from the new compressor)
Tightening torques
Compressor oil plug 30 Nm